To save this word, you'll need to log in.
Definition of Caspian tern
: a large scarlet-billed tern (Sterna caspia or Hydropygne caspia) widely distributed in the northern hemisphere with one subspecies occurring in much of northern North America
Comments on Caspian tern
What made you want to look up Caspian tern? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Challenging Vocabulary Quiz Returns!
- Which is a synonym of fuliginous?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
Share Caspian tern